We have 12 Volt standard and heavy-duty pumps and a 115 Volt high flow pump. The rotary hand style fuel pump is adjustable for 15- to 55-gallon drums and can deliver six gallons per 100 rotations. The lever action barrel pump is designed for petroleum-based, non-corrosive liquids, like oils, soaps and transmission fluid and fits 30- to 55-gallon drums.